N-(2-(5-methoxy-1H-indol-3-yl)ethyl)cyclopropanecarboxamide → HCID 10449713, compound

Participants

Reaction Steps

N-bromo succinimide (0.89 g, 5 mmol) was added to a solution of N-cyclopropanoyl-5-methoxytryptamine, 4j (1.29 g, 5 mmol) in acetic acid (20 mL). The reaction mixture was stirred under N2 at room temperature for 4 h, then cooled at 0° C., neutralized with a 50% solution of NaOH and extracted with ethyl acetate. The combined organic layers were washed with NaCl solution, dried (Na2SO4) and concentrated. Purification by flash chromatography (silica gel; ethyl acetate/cyclohexane 6:4) and crystallization gave 0.490 g (29% yield) of 4h as white solid, mp 82°-83° C. IR νmax : 3460, 3300, 1650. 1H NMR: 0.72(m, 2H, CH2cyclopropyl), 0.99(m, 2H, CH2cyclopropyl), 1.27(m, 1H, cyclopropyl-CH), 2.93(t, 2H, β -CH2), 3.56(q, 2H, α-CH2), 3.85(s, 3H, OCH3), 5.72(br s, 1H, NH), 6.80-7.25(m, 3Harom), 8.21(br s, 1H, NHindole).

Provenance & Evidence